CN102278109A - Well leakage position ground and underground comprehensive detection system and method - Google Patents
Well leakage position ground and underground comprehensive detection system and method Download PDFInfo
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- CN102278109A CN102278109A CN201110173550A CN201110173550A CN102278109A CN 102278109 A CN102278109 A CN 102278109A CN 201110173550 A CN201110173550 A CN 201110173550A CN 201110173550 A CN201110173550 A CN 201110173550A CN 102278109 A CN102278109 A CN 102278109A
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Abstract
The invention provides a well leakage position ground and underground comprehensive detection system and method, relates to a measurement method applied to the field of petroleum well drilling, and in particular relates to a method for carrying out position detection on the well leakage produced in a well drilling process. The invention provides a leakage layer measurement method which can improve leakage finding efficiency by combining a ground method with an underground method, aiming at overcoming the defects that the ground measurement method is inaccurate and the underground measurement method is accurate and consumes long time. Firstly the depth range of well leakage position is determined by adopting a ground vertical pressure variation method, then subsurface equipment is placed into a well, underground measurement is carried out in the selected depth range, the measured data are analyzed on the ground, and position of the leakage layer is found.
Description
Technical field:
The present invention relates to a kind of detection method that is applied to field of oil drilling, specifically relate to a kind of the leakage phenomenon that takes place be monitored method with position measurement in drilling process.
Background technology:
Leakage is a common and complex accident in oil, the gas drilling engineering.So-called leakage is exactly the phenomenon that drilling fluid bleeds the stratum in the drilling process, leakage takes place in the drilling engineering not only have a strong impact on safe, quick, low-cost drilling well but also meeting severe contamination oil-gas Layer, influences oil and gas production.After the key of leak stopping work is that leakage takes place, determine the position of lost-circulation zone as early as possible exactly, so that in time take effective leaking-stopping measure, the assurance drilling well is normally carried out.
Present widely used method is that hydrodynamics is surveyed and the downhole instrument method of testing.The certainty of measurement of hydrodynamics method is subjected to the influence of multiple parameters such as hole diameter, drilling tool, mud flow rate, has certain error, and the result is inaccurate, can only determine a bigger scope.The instrument test method mainly is to utilize the various physical characteristics of borehole fluid to measure at present, as flow velocity, temperature etc.This class measuring method is accurate relatively, but the measuring well segment length, length consuming time, efficient is low, and single method is used the limitation that is subjected to different geological conditionss easily.Comprehensive, the systematization research and application that lack ground and down-hole method of drop ply position measuring technique lack the integrated exploitation that multiple technologies make up mutually, replenish mutually at present.
Summary of the invention:
Not enough and downhole instrument is tested length consuming time, efficient is low and the single method application has the deficiency of limitation, the present invention can solve in the drilling engineering drop ply position to determine the difficult problem that the time is long, error is big for the certainty of measurement that overcomes existing hydrodynamics method.The technical solution used in the present invention be divided into following two the step solve:
The first step is carried out standpipe pressure monitoring on ground, if find the leakage phenomenon, and alert notice monitor staff immediately, and point out the scope of leakage position;
Second step was provided with the acquisition parameter of down-hole general measuring instrument, adopted cable or drilling rod mode, and instrument is put into the down-hole, measured whole drop plies according to the scope that surface process is determined, on carry instrument, the retaking of a year or grade image data is carried out data and is explained, finds out the position of drop ply.
Compared with prior art, tangible advantage of the present invention:
The present invention can find in time that not only the leakage phenomenon reports to the police, and points out the depth bounds of drop ply, and can accurately find out drop ply position to have very strong economic benefit.
Description of drawings:
Fig. 1 is the workflow of this method, and Fig. 2 is the above ground portion block diagram, and Fig. 3 is a down-hole part block diagram.
The specific embodiment:
The present invention includes ground and down-hole two parts.Above ground portion is made up of computer, Acquisition Circuit, standpipe pressure sensor and communication interface circuit referring to Fig. 2.The down-hole part is referring to Fig. 3, by high-temperature battery, communication interface, control store circuit and several different methods transducer combinations.
Carry out the standpipe pressure monitoring on ground, gather the signal of standpipe pressure sensor in real time by Acquisition Circuit by computer, the real-time analysis image data, detect the variation of standpipe pressure, if no abnormal continuation monitoring is if find leakage phenomenon, alert notice monitor staff immediately, and point out the scope of leakage position, the measurement parameter of down-hole instrument is provided; Transfer before the instrument, computer is provided with the running parameter and the condition of work of down-hole instrument by communication interface.After the parameter setting of down-hole general measuring instrument is finished, adopt cable or drilling rod mode, downhole instrument is put into the down-hole, and transfer to designated depth;
The condition real-time judge of the control store circuit of down-hole instrument to start gathering, when reach start acquisition condition after, start and gather, the signal of cycle index sensor combination successively, until the drop ply depth bounds that measures the ground appointment, on carry instrument; Computer reads the image data of storing in the instrument of down-hole by communication interface, carries out data and explains, determines the position of drop ply.
Claims (4)
1. the measuring method that combines of ground and down-hole, it is characterized in that: surface process is judged the depth bounds of leakage position earlier, and then downhole instrument is put into well, carry out underground survey according to selected depth bounds, preserve, survey data is analyzed on ground, find out the position of drop ply.
2. surface process according to claim 1, surface process refers to ground determination methods such as standpipe pressure method.
3. surface process according to claim 1, the underground survey method refers to measuring methods such as temperature, noise and sound wave.
4. according to claim 1, the downhole stored mode is adopted in underground survey, and instrument is transferred and adopted cable to transfer or the drilling rod propelling, adapts to common vertical well, especially horizontal well and decline corner well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173550A CN102278109A (en) | 2011-06-18 | 2011-06-18 | Well leakage position ground and underground comprehensive detection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173550A CN102278109A (en) | 2011-06-18 | 2011-06-18 | Well leakage position ground and underground comprehensive detection system and method |
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| Publication Number | Publication Date |
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| CN102278109A true CN102278109A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201110173550A Pending CN102278109A (en) | 2011-06-18 | 2011-06-18 | Well leakage position ground and underground comprehensive detection system and method |
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| CN (1) | CN102278109A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868687A (en) * | 2017-05-15 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of method of leak-proof leak-stopping |
| CN109162707A (en) * | 2018-08-29 | 2019-01-08 | 中石化石油工程技术服务有限公司 | Drop ply position judgment method in a kind of drilling process |
| CN111963154A (en) * | 2020-09-01 | 2020-11-20 | 中国石油天然气股份有限公司 | Casing damage oil well leakage point identification method |
| CN117846581A (en) * | 2023-12-29 | 2024-04-09 | 东营安兴石油科技有限公司 | Petroleum drilling leakage layer position detection method and detection system |
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| CN101109280A (en) * | 2007-08-17 | 2008-01-23 | 四川石油管理局钻采工艺技术研究院 | Test device for down-hole drop ply position |
| US20090090554A1 (en) * | 2006-11-09 | 2009-04-09 | Pathfinder Energy Services, Inc. | Closed-loop physical caliper measurements and directional drilling method |
| CN101446191A (en) * | 2008-11-17 | 2009-06-03 | 文必用 | Drilling well control parameter intelligent monitoring system |
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2011
- 2011-06-18 CN CN201110173550A patent/CN102278109A/en active Pending
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| US20090090554A1 (en) * | 2006-11-09 | 2009-04-09 | Pathfinder Energy Services, Inc. | Closed-loop physical caliper measurements and directional drilling method |
| CN101109280A (en) * | 2007-08-17 | 2008-01-23 | 四川石油管理局钻采工艺技术研究院 | Test device for down-hole drop ply position |
| CN101446191A (en) * | 2008-11-17 | 2009-06-03 | 文必用 | Drilling well control parameter intelligent monitoring system |
Non-Patent Citations (2)
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| 孙传友等: "漏层位置的仪器测定法", 《石油仪器》 * |
| 郑友志等: "井温_噪声组合找漏测井在龙岗气井中的应用", 《测井技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868687A (en) * | 2017-05-15 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of method of leak-proof leak-stopping |
| CN108868687B (en) * | 2017-05-15 | 2020-08-11 | 中国石油化工股份有限公司 | Leakage-proof and plugging method |
| CN109162707A (en) * | 2018-08-29 | 2019-01-08 | 中石化石油工程技术服务有限公司 | Drop ply position judgment method in a kind of drilling process |
| CN111963154A (en) * | 2020-09-01 | 2020-11-20 | 中国石油天然气股份有限公司 | Casing damage oil well leakage point identification method |
| CN117846581A (en) * | 2023-12-29 | 2024-04-09 | 东营安兴石油科技有限公司 | Petroleum drilling leakage layer position detection method and detection system |
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Application publication date: 20111214 |