CN116122800A - Underground low-power consumption coding and decoding data transmission method and system - Google Patents

Abstract

Translated fromChinese

本发明公开了一种井下低功耗编解码数据传输方法及系统，随钻测斜设备根据钻井开泵时间判断是否进入工作状态；当进入工作状态后，在停泵时进行井斜测量以及温度测量；在开泵一定时间后向地面设备发送编码脉冲，第一个编码脉冲和第二个编码脉冲的发送时间间隔T根据测得的井斜数据按照设定规则计算得到；所述地面设备在开泵一定时间后对泵压进行持续监测，当检测到第一个压力变化的波形后开始计时，到检测到第二个压力变化的波形后结束计时，获得两个波形的时间差T，并根据得到的时间差T以及所述规则进行井斜解码得到测得的井斜数据。超低功耗的编码发送方式进行井斜数据传输，可超过30天的井下工作时长，有效提高测斜钻井效率。

The invention discloses a downhole low-power encoding and decoding data transmission method and system. The inclinometer while drilling equipment judges whether it enters the working state according to the drilling and pumping time; when it enters the working state, the well deviation measurement and temperature Measurement; after the pump is turned on for a certain period of time, the coded pulse is sent to the ground equipment, and the time interval T between the first coded pulse and the second coded pulse is calculated according to the measured well deviation data according to the set rules; the ground equipment is After the pump is turned on for a certain period of time, the pump pressure is continuously monitored. When the first waveform of pressure change is detected, the timing is started, and the timing is stopped after the second waveform of pressure variation is detected. The time difference T between the two waveforms is obtained, and according to The obtained time difference T and the rules are used to decode the well deviation to obtain the measured well deviation data. The ultra-low power consumption encoding transmission method transmits well deviation data, which can exceed 30 days of downhole working time, effectively improving the efficiency of deviation measurement and drilling.

Description

Translated fromChinese

一种井下低功耗编解码数据传输方法及系统An underground low-power codec data transmission method and system

技术领域technical field

本发明涉及钻井技术领域，具体涉及一种井下低功耗编解码数据传输方法及系统。The invention relates to the field of drilling technology, in particular to an downhole low-power encoding and decoding data transmission method and system.

背景技术Background technique

随着对钻井深度的及对钻井速度要求的不断提高，尤其需提高直井段钻井的钻井效率，目前国内还是主要通过MWD和自浮式单点测斜仪进行直井段井斜监测存在测斜时间长、工具组装复杂费用高，井下安全隐患等问题，无法提高工作效率。本发明基于低功耗直井测斜随钻测斜设备，通过简化钻具，超过30天的井下工作时长，超低功耗的编码发送方式进行井斜数据传输，可有效提高测斜钻井效率。With the continuous improvement of drilling depth and drilling speed requirements, especially the drilling efficiency of vertical well section drilling needs to be improved. At present, MWD and self-floating single-point inclinometer are mainly used in China to monitor vertical well section inclination. Long, complex tool assembly, high cost, hidden safety hazards and other problems in the mine, it is impossible to improve work efficiency. The invention is based on low-power vertical well inclinometer while drilling inclinometer equipment. By simplifying the drilling tool, the downhole working time exceeds 30 days, and the ultra-low power consumption coding transmission mode transmits the well inclination data, which can effectively improve the inclination measurement and drilling efficiency.

发明内容Contents of the invention

为此，本发明提供一种井下低功耗编解码数据传输方法及系统，以解决现有井斜监测存在的测斜时间长，测斜钻井工作效率低的问题。For this reason, the present invention provides an downhole low-power encoding and decoding data transmission method and system to solve the problems of long measurement time and low working efficiency of measurement and drilling existing in the existing well deviation monitoring.

为了实现上述目的，本发明提供如下技术方案：In order to achieve the above object, the present invention provides the following technical solutions:

根据本发明实施例的第一方面，提出一种井下低功耗编解码数据传输方法，所述方法包括：According to the first aspect of the embodiments of the present invention, an underground low-power codec data transmission method is proposed, the method comprising:

根据钻井开泵时间判断是否进入工作状态；Judging whether to enter the working state according to the drilling pump time;

当进入工作状态后，在停泵时进行井斜测量以及温度测量；After entering the working state, the well deviation measurement and temperature measurement are carried out when the pump is stopped;

在开泵一定时间后向地面设备发送编码脉冲，第一个编码脉冲和第二个编码脉冲的发送时间间隔T根据测得的井斜数据按照设定规则计算得到；After the pump is turned on for a certain period of time, the coded pulse is sent to the ground equipment, and the time interval T between the first coded pulse and the second coded pulse is calculated based on the measured well deviation data according to the set rules;

所述地面设备在开泵一定时间后对泵压进行持续监测，当检测到第一个压力变化的波形后开始计时，到检测到第二个压力变化的波形后结束计时，获得两个波形的时间差T，并根据得到的时间差T以及所述规则进行井斜解码得到测得的井斜数据。The ground equipment continuously monitors the pump pressure after the pump is turned on for a certain period of time, starts timing when the first waveform of pressure change is detected, and ends timing after detecting the second waveform of pressure variation, and obtains the results of the two waveforms. time difference T, and perform well deviation decoding according to the obtained time difference T and the described rules to obtain the measured well deviation data.

进一步地，根据钻井开泵时间判断是否进入工作状态，具体包括：Further, judge whether to enter the working state according to the drilling pump time, specifically including:

随钻测斜设备在正常钻进过程中处于低功耗的待机状态。The inclinometer while drilling equipment is in a low-power standby state during normal drilling.

进一步地，根据钻井开泵时间判断是否进入工作状态，具体包括：Further, judge whether to enter the working state according to the drilling pump time, specifically including:

当停泵一定时间后进行开泵，开泵需超过第一预设时长，且在第二预设时长内停泵，停泵后在第三预设时长进行开泵，并在第四预设时长内流量稳定开至预设流量阈值并保持稳定，测斜设备激活测斜。When the pump is turned on after a certain period of time, the pump needs to exceed the first preset time, and the pump should be stopped within the second preset time, and the pump should be turned on after the third preset time, and the fourth preset time When the flow rate reaches the preset flow threshold and remains stable within a certain period of time, the inclinometer device activates the inclinometer.

进一步地，所述第一个编码脉冲和第二个编码脉冲的发送时间间隔T＝INC*a+b，其中a是常数系数，b为设定时间值，单位s，INC为测得的井斜数据。Further, the sending time interval of the first encoding pulse and the second encoding pulse is T=INC*a+b, where a is a constant coefficient, b is a setting time value, and the unit is s, and INC is the measured well skewed data.

进一步地，根据得到的时间差T进行井斜解码得到测得的井斜数据，具体包括：Further, the well deviation decoding is performed according to the obtained time difference T to obtain the measured well deviation data, specifically including:

根据井斜INC＝1+(T-b)/a，推算得到井斜数据。According to the well deviation INC=1+(T-b)/a, the well deviation data is calculated.

进一步地，当检测到第一个压力变化的波形后开始计时，到检测到第二个压力变化的波形后结束计时，获得两个波形的时间差T，具体为：Further, when the waveform of the first pressure change is detected, the timing is started, and the timing is ended after the second waveform of pressure change is detected, and the time difference T between the two waveforms is obtained, specifically:

从第一个泵压下降开始计时，到第二个泵压下降结束计时，时间差计为T。The timing starts from the first pump pressure drop and ends with the second pump pressure drop, and the time difference is counted as T.

根据本发明实施例的第二方面，提出一种井下低功耗数据编解码传输系统，所述系统包括随钻测斜设备以及与所述随钻测斜设备通信的地面设备；According to the second aspect of the embodiments of the present invention, an downhole low-power data encoding and decoding transmission system is proposed, the system includes a measuring-while-drilling device and a ground device communicating with the measuring-while-drilling device;

所述随钻测斜设备包括：The measuring-while-drilling equipment includes:

激活模块，用于根据钻井开泵时间判断是否进入工作状态；The activation module is used to judge whether to enter the working state according to the drilling pump time;

测斜模块，用于当进入工作状态后，在停泵时进行井斜测量以及温度测量；The inclinometer module is used for well inclination measurement and temperature measurement when the pump is stopped after entering the working state;

编码传输模块，用于在开泵一定时间后向地面设备发送编码脉冲，第一个编码脉冲和第二个编码脉冲的发送时间间隔T根据测得的井斜数据按照设定规则计算得到；The coded transmission module is used to send coded pulses to the surface equipment after a certain period of time when the pump is turned on, and the sending time interval T of the first coded pulse and the second coded pulse is calculated according to the measured well deviation data according to the set rules;

所述地面设备包括井斜解码模块，用于在开泵一定时间后对泵压进行持续监测，当检测到第一个压力变化的波形后开始计时，到检测到第二个压力变化的波形后结束计时，获得两个波形的时间差T，并根据得到的时间差T以及所述规则进行井斜解码得到测得的井斜数据。The ground equipment includes a well deviation decoding module, which is used to continuously monitor the pump pressure after the pump is turned on for a certain period of time. When the waveform of the first pressure change is detected, timing starts, and when the waveform of the second pressure change is detected, After the timing is finished, the time difference T of the two waveforms is obtained, and the well deviation is decoded according to the obtained time difference T and the rules to obtain the measured well deviation data.

进一步地，所述编码传输模块，具体用于：Further, the encoding transmission module is specifically used for:

所述第一个编码脉冲和第二个编码脉冲的发送时间间隔T＝INC*a+b，其中a是常数系数，b为设定时间值，单位s，INC为测得的井斜数据。The sending time interval of the first encoding pulse and the second encoding pulse is T=INC*a+b, wherein a is a constant coefficient, b is a set time value, the unit is s, and INC is the measured well deviation data.

进一步地，所述井斜解码模块，具体用于：Further, the well deviation decoding module is specifically used for:

根据井斜INC＝1+(T-b)/a，推算得到井斜数据。According to the well deviation INC=1+(T-b)/a, the well deviation data is calculated.

进一步地，所述激活模块，具体用于：Further, the activation module is specifically used for:

当停泵一定时间后进行开泵，开泵需超过第一预设时长，且在第二预设时长内停泵，停泵后在第三预设时长进行开泵，并在第四预设时长内流量稳定开至预设流量阈值并保持稳定，测斜设备激活测斜。When the pump is turned on after a certain period of time, the pump needs to exceed the first preset time, and the pump should be stopped within the second preset time, and the pump should be turned on after the third preset time, and the fourth preset time When the flow rate reaches the preset flow threshold and remains stable within a certain period of time, the inclinometer device activates the inclinometer.

本发明具有如下优点：The present invention has the following advantages:

本发明提出的一种井下低功耗编解码数据传输方法及系统，随钻测斜设备根据钻井开泵时间判断是否进入工作状态；当进入工作状态后，在停泵时进行井斜测量以及温度测量；在开泵一定时间后向地面设备发送编码脉冲，第一个编码脉冲和第二个编码脉冲的发送时间间隔T根据测得的井斜数据按照设定规则计算得到；所述地面设备在开泵一定时间后对泵压进行持续监测，当检测到第一个压力变化的波形后开始计时，到检测到第二个压力变化的波形后结束计时，获得两个波形的时间差T，并根据得到的时间差T以及所述规则进行井斜解码得到测得的井斜数据。超低功耗的编码发送方式进行井斜数据传输，可超过30天的井下工作时长，有效提高测斜钻井效率。The present invention proposes a downhole low-power codec data transmission method and system. The inclinometer while drilling equipment judges whether it is in the working state according to the drilling and pumping time; when it is in the working state, the well deviation measurement and the temperature Measurement; after the pump is turned on for a certain period of time, the coded pulse is sent to the ground equipment, and the time interval T between the first coded pulse and the second coded pulse is calculated according to the measured well deviation data according to the set rules; the ground equipment is After the pump is turned on for a certain period of time, the pump pressure is continuously monitored. When the first waveform of pressure change is detected, the timing is started, and the timing is stopped after the second waveform of pressure variation is detected. The time difference T between the two waveforms is obtained, and according to The obtained time difference T and the rules are used to decode the well deviation to obtain the measured well deviation data. The ultra-low power consumption encoding transmission method transmits well deviation data, which can exceed 30 days of downhole working time, effectively improving the efficiency of deviation measurement and drilling.

附图说明Description of drawings

为了更清楚地说明本发明的实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍。显而易见地，下面描述中的附图仅仅是示例性的，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图引伸获得其它的实施附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Apparently, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative work.

图1为本发明实施例1提供的一种井下低功耗编解码数据传输方法的流程示意图；Fig. 1 is a schematic flow chart of an downhole low-power codec data transmission method provided by Embodiment 1 of the present invention;

图2为本发明实施例1提供的一种井下低功耗编解码数据传输方法的具体实施过程示意图。FIG. 2 is a schematic diagram of a specific implementation process of an downhole low-power codec data transmission method provided by Embodiment 1 of the present invention.

具体实施方式Detailed ways

以下由特定的具体实施例说明本发明的实施方式，熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本发明的其他优点及功效，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

实施例1Example 1

如图1和图2所示，本实施例提出了一种井下低功耗编解码数据传输方法，所述方法由随钻测斜设备执行，在直井钻进中使用，所述方法包括：As shown in Figures 1 and 2, this embodiment proposes a method for downhole low-power encoding and decoding data transmission, which is performed by measuring-while-drilling equipment and used in vertical well drilling. The method includes:

S100、根据钻井开泵时间判断是否进入工作状态。S100, judging whether to enter the working state according to the drilling pumping time.

随钻测斜设备在在正常钻进过程中是处于低功耗的待机状态，仪器的激活测斜，是通过钻井开泵的时间来进行判断，停泵1分钟后进行开泵，开泵需超过2分钟，且在5分钟内停泵，停泵后在2～3分钟内进行开泵，要求20秒内，流量稳定开至30L/min左右并保持稳定。The inclinometer while drilling equipment is in the standby state of low power consumption during the normal drilling process. The activation of the inclinometer is judged by the time when the drilling pump is turned on. The pump is turned on after 1 minute of stopping the pump. More than 2 minutes, and stop the pump within 5 minutes, and start the pump within 2 to 3 minutes after stopping the pump. It is required that the flow rate should be stable to about 30L/min within 20 seconds and remain stable.

S200、当进入工作状态后，在停泵时进行井斜测量以及温度测量并进行存储。S200. After entering the working state, measure the well deviation and temperature when the pump is stopped and store them.

S300、在开泵一定时间后向地面设备发送编码脉冲，第一个编码脉冲和第二个编码脉冲的发送时间间隔T根据测得的井斜数据按照设定规则计算得到。S300. After starting the pump for a certain period of time, send coded pulses to the surface equipment. The time interval T between sending the first coded pulse and the second coded pulse is calculated according to the measured well deviation data according to the set rules.

开泵30秒后，开始发送第一个编码脉冲，第二个编码发送间隔则为：T＝INC*1.2+11S，INC为测得的井斜数据。30 seconds after the pump is turned on, the first code pulse is sent, and the second code sending interval is: T=INC*1.2+11S, where INC is the measured well deviation data.

S400、所述地面设备在开泵一定时间后对泵压进行持续监测，当检测到第一个压力变化的波形后开始计时，到检测到第二个压力变化的波形后结束计时，获得两个波形的时间差T，并根据得到的时间差T以及所述规则进行井斜解码得到测得的井斜数据。S400. The ground equipment continuously monitors the pump pressure after the pump is turned on for a certain period of time, starts timing when the first waveform of pressure change is detected, and ends timing after detecting the second waveform of pressure variation, and obtains two The time difference T of the waveform, and according to the obtained time difference T and the described rules, the well deviation decoding is performed to obtain the measured well deviation data.

地面设备则跟进泵压变化开始解码，开泵后30S则开始进行泵压监控，从第一个泵压下降开始计时，到第二个下降泵压的时间计为T，则推算处井斜INC＝1+(T-11)/1.2。The surface equipment follows the change of the pump pressure and starts to decode, and starts to monitor the pump pressure 30 seconds after the pump is turned on. The timing starts from the first pump pressure drop, and the time from the second pump pressure drop is counted as T, and the well deviation is calculated. INC=1+(T-11)/1.2.

本实施例基于低功耗直井测斜随钻测斜设备，在直井钻进中使用，井斜测量范围20°入井后待机情况下电流仅为1.5mA，进行持续的钻井工作，单次入井工作时长可达到30天。采用超低功耗的编码发送方式进行井斜数据传输，可有效提高测斜钻井效率。This embodiment is based on the low-power vertical well inclination measuring while drilling equipment, which is used in vertical well drilling. The current is only 1.5mA in the standby state after the well deviation measurement range is 20°, and the continuous drilling work is carried out, and the single well entry work is performed. The duration can be up to 30 days. Adopting ultra-low power consumption encoding transmission method to transmit well deviation data can effectively improve the efficiency of deviation measurement and drilling.

实施例2Example 2

与上述实施例1相对应的，本实施例提出了一种井下低功耗数据编解码传输系统，所述系统包括随钻测斜设备以及与所述随钻测斜设备通信的地面设备；Corresponding to the above-mentioned embodiment 1, this embodiment proposes an downhole low-power data encoding and decoding transmission system, the system includes an inclinometer-while-drilling device and ground equipment communicating with the inclinometer-while-drilling device;

所述随钻测斜设备包括：The measuring-while-drilling equipment includes:

激活模块，用于根据钻井开泵时间判断是否进入工作状态；The activation module is used to judge whether to enter the working state according to the drilling pump time;

测斜模块，用于当进入工作状态后，在停泵时进行井斜测量以及温度测量；The inclinometer module is used for well inclination measurement and temperature measurement when the pump is stopped after entering the working state;

编码传输模块，用于在开泵一定时间后向地面设备发送编码脉冲，第一个编码脉冲和第二个编码脉冲的发送时间间隔T根据测得的井斜数据按照设定规则计算得到；The coded transmission module is used to send coded pulses to the surface equipment after a certain period of time when the pump is turned on, and the sending time interval T of the first coded pulse and the second coded pulse is calculated according to the measured well deviation data according to the set rules;

所述地面设备包括井斜解码模块，用于在开泵一定时间后对泵压进行持续监测，当检测到第一个压力变化的波形后开始计时，到检测到第二个压力变化的波形后结束计时，获得两个波形的时间差T，并根据得到的时间差T以及所述规则进行井斜解码得到测得的井斜数据。The ground equipment includes a well deviation decoding module, which is used to continuously monitor the pump pressure after the pump is turned on for a certain period of time. When the waveform of the first pressure change is detected, timing starts, and when the waveform of the second pressure change is detected, After the timing is finished, the time difference T of the two waveforms is obtained, and the well deviation is decoded according to the obtained time difference T and the rules to obtain the measured well deviation data.

进一步地，所述编码传输模块，具体用于：Further, the encoding transmission module is specifically used for:

所述第一个编码脉冲和第二个编码脉冲的发送时间间隔T＝INC*a+b，其中a是常数系数，b为设定时间值，单位s，INC为测得的井斜数据。The sending time interval of the first encoding pulse and the second encoding pulse is T=INC*a+b, wherein a is a constant coefficient, b is a set time value, the unit is s, and INC is the measured well deviation data.

进一步地，所述井斜解码模块，具体用于：Further, the well deviation decoding module is specifically used for:

根据井斜INC＝1+(T-b)/a，推算得到井斜数据。According to the well deviation INC=1+(T-b)/a, the well deviation data is calculated.

进一步地，所述激活模块，具体用于：Further, the activation module is specifically used for:

当停泵一定时间后进行开泵，开泵需超过第一预设时长，且在第二预设时长内停泵，停泵后在第三预设时长进行开泵，并在第四预设时长内流量稳定开至预设流量阈值并保持稳定，测斜设备激活测斜。When the pump is turned on after a certain period of time, the pump needs to exceed the first preset time, and the pump should be stopped within the second preset time, and the pump should be turned on after the third preset time, and the fourth preset time When the flow rate reaches the preset flow threshold and remains stable within a certain period of time, the inclinometer device activates the inclinometer.

本发明实施例提供的一种井下低功耗数据编解码传输系统中各部件所执行的功能均已在上述实施例1中做了详细介绍，因此这里不做过多赘述。The functions performed by each component in the downhole low-power data encoding/decoding transmission system provided by the embodiment of the present invention have been described in detail in the above-mentioned embodiment 1, so details will not be repeated here.

虽然，上文中已经用一般性说明及具体实施例对本发明作了详尽的描述，但在本发明基础上，可以对之作一些修改或改进，这对本领域技术人员而言是显而易见的。因此，在不偏离本发明精神的基础上所做的这些修改或改进，均属于本发明要求保护的范围。Although the present invention has been described in detail with general descriptions and specific examples above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.

Claims (10)

1. A method for transmitting downhole low-power-consumption encoded and decoded data, the method comprising:

judging whether to enter a working state according to the drilling pump starting time;

when the working state is entered, well deviation measurement and temperature measurement are carried out when the pump is stopped;

transmitting coding pulses to the ground equipment after the pump is started for a certain time, wherein the transmission time interval T of the first coding pulse and the second coding pulse is calculated according to the measured well deviation data and the set rule;

the ground equipment continuously monitors the pump pressure after the pump is started for a certain time, starts timing after detecting the waveform of the first pressure change, finishes timing after detecting the waveform of the second pressure change, obtains the time difference T of the two waveforms, and decodes the well deviation according to the obtained time difference T and the rule to obtain measured well deviation data.

2. The method for transmitting downhole low-power-consumption encoded and decoded data according to claim 1, wherein the method for judging whether to enter the working state according to the drilling pump-on time comprises the following steps:

the while-drilling inclinometry device is in a low-power standby state in the normal drilling process.

3. The method for transmitting downhole low-power-consumption encoded and decoded data according to claim 1, wherein the method for judging whether to enter the working state according to the drilling pump-on time comprises the following steps:

and when the pump is stopped for a certain time, the pump is started, the pump is stopped within a second preset time period, the pump is started within a third preset time period after the pump is stopped, the flow is stably started to a preset flow threshold value within a fourth preset time period and is kept stable, and the inclinometry equipment activates inclinometry.

4. The method of claim 1, wherein the transmission time interval t=inc_a+b between the first and second encoded pulses, where a is a constant coefficient, b is a set time value, and INC is measured well deviation data.

5. The method for transmitting downhole low-power-consumption encoded and decoded data according to claim 4, wherein the method for transmitting the downhole low-power-consumption encoded and decoded data is characterized by comprising the following steps:

from the well deviation inc=1+ (T-b)/a, well deviation data are calculated.

6. The method for transmitting downhole low power consumption codec data according to claim 1, wherein the timing is started after the waveform of the first pressure change is detected, and the timing is ended after the waveform of the second pressure change is detected, and the time difference T between the two waveforms is obtained, specifically:

the time difference is counted as T from the beginning of the first pump down to the ending of the second pump down.

7. A downhole low power consumption data codec transmission system, the system comprising a while-drilling inclinometry device and a surface device in communication with the while-drilling inclinometry device;

the while drilling inclinometry apparatus includes:

the activation module is used for judging whether to enter a working state according to the drilling pump starting time;

the inclinometry module is used for measuring well inclination and temperature when the pump is stopped after entering the working state;

the code transmission module is used for transmitting code pulses to ground equipment after a certain time is started, and the transmission time interval T of the first code pulse and the second code pulse is calculated according to the measured well deviation data and the set rule;

the ground equipment comprises a well deviation decoding module, wherein the well deviation decoding module is used for continuously monitoring a pump pressure after the pump is started for a certain time, starting timing after detecting the waveform of the first pressure change, ending timing after detecting the waveform of the second pressure change, obtaining the time difference T of the two waveforms, and carrying out well deviation decoding according to the obtained time difference T and the rule to obtain measured well deviation data.

8. The downhole low-power data codec transmission system of claim 7, wherein the code transmission module is specifically configured to:

the transmission time interval t=inc of the first and second encoded pulses is a+b, where a is a constant coefficient, b is a set time value, and INC is measured well deviation data.

9. The downhole low power consumption data codec transmission system of claim 7, wherein the well deviation decoding module is specifically configured to:

from the well deviation inc=1+ (T-b)/a, well deviation data are calculated.

10. The downhole low power consumption data codec transmission system of claim 7, wherein the activation module is specifically configured to:

and when the pump is stopped for a certain time, the pump is started, the pump is stopped within a second preset time period, the pump is started within a third preset time period after the pump is stopped, the flow is stably started to a preset flow threshold value within a fourth preset time period and is kept stable, and the inclinometry equipment activates inclinometry.

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