CN114165214A - Novel high-temperature high-pressure lithology density probe main body - Google Patents
Novel high-temperature high-pressure lithology density probe main body Download PDFInfo
- Publication number
- CN114165214A CN114165214A CN202010840310.XA CN202010840310A CN114165214A CN 114165214 A CN114165214 A CN 114165214A CN 202010840310 A CN202010840310 A CN 202010840310A CN 114165214 A CN114165214 A CN 114165214A
- Authority
- CN
- China
- Prior art keywords
- density probe
- density
- pressure
- probe
- lithology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The invention relates to the field of petroleum logging, in particular to a novel high-temperature high-pressure lithology density probe for lithology density logging. Including density probe top connection, density probe main part, density probe lower clutch, radiation detector, density probe top connection, density probe main part, density probe lower clutch connect in order, radiation detector sets up inside the density probe main part. The invention can realize that the instrument can work in a high-temperature high-pressure ultra-deep well at the temperature of 200 ℃ and the pressure of 206MPa for a long time (more than 20 hours). The method is suitable for measurement of horizontal wells and highly-deviated wells.
Description
Technical Field
The invention relates to the field of petroleum logging, in particular to a novel high-temperature high-pressure lithology density probe for lithology density logging.
Background
The novel high-temperature high-pressure lithology density logging instrument radiates gamma rays to a stratum by using a Cs137 gamma source, and then measures the intensity of the gamma rays scattered and absorbed by the stratum by using a long-short source distance detector which is at a certain distance away from the source. Since the gamma ray energy of the cesium source is 0.661Mev, the gamma ray and substance action at the energy level mainly produces Compton-Wu training effect, the scattering cross section of the gamma ray is closely related to the volume density of the stratum, and the gamma ray can be used for measuring the density value of the rock. The greater the formation density, the stronger the absorption of gamma rays and the weaker the intensity of gamma rays detected, whereas the lower the formation density, the lower the absorption of gamma rays and the stronger the intensity of gamma rays detected.
The maximum working temperature of the existing lithologic density logging instrument is 175 ℃, the pressure resistance is 140MPa, and the ultra-deep oil-gas well measurement with the well temperature exceeding 200 ℃ and the well bore pressure exceeding 200MPa is difficult to meet. Meanwhile, for the conveying and storage type well logging of the drilling tool, the communication between the instrument and a ground numerical control instrument cannot be established, the control pushing is not adopted, the instrument is difficult to be well attached to the well wall, and the measuring effect is ensured.
Aiming at the problems, the lithology density probe can be used at high temperature and high pressure of more than 200 ℃ and more than 200MPa and can reliably work; meanwhile, a structure capable of enabling the lithologic density probe to be always kept in a state of being attached to the well wall in the horizontal well is designed, and the structure is used for ensuring that the probe is always attached to the well wall.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a novel high-temperature high-pressure lithology density probe, which adopts the following technical scheme:
the utility model provides a novel high temperature high pressure lithology density probe, includes density probe top connection, density probe main part, density probe lower clutch, ray detector, density probe top connection, density probe main part, density probe lower clutch connect in order, ray detector sets up inside the density probe main part.
Preferably, the novel high-temperature high-pressure lithology density probe comprises an upper cover cap, a pressure-bearing shell, a lower joint, a lower cover cap, an electronic circuit core and a vacuum flask; the upper cover cap, the pressure-bearing shell, the lower joint and the lower cover cap are sequentially connected; the electronic circuit core and the vacuum bottle are sequentially spliced and then sleeved in the pressure-bearing shell of the instrument.
Furthermore, a pressure bearing disc is arranged between the end face of the vacuum flask and the end face of the lower cover cap.
Preferably, the novel high-temperature high-pressure lithology density probe comprises an upper cover cap, a lower cover cap, an upper joint, a density probe, a lower joint and a main body; the upper cap, the upper joint, the main body, the lower joint and the lower cap are connected in sequence; and two ends of the density probe are hinged on the main body.
Furthermore, an upper connector and a lower connector are respectively hinged to two ends of the density probe, and the upper connector and the lower connector are hinged to the main body.
Furthermore, an electronic circuit core is arranged in the main body.
Furthermore, still include the hose, the density probe with the electronic circuit core passes through the cable and connects, the cable cover is equipped with the hose.
Furthermore, a groove for accommodating the density probe, the upper connector and the lower connector is formed in the main body, and when the density probe, the upper connector and the lower connector are arranged in the groove, the overall diameter of the density probe is consistent with that of the main body.
The invention has the beneficial effects that:
1. the instrument can work in a high-temperature high-pressure ultra-deep well at the temperature of 200 ℃ and the pressure of 206MPa for a long time (more than 20 hours).
2. The method is suitable for measurement of horizontal wells and highly-deviated wells.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment;
FIG. 2 is a schematic structural view of the second embodiment;
FIG. 3 is a schematic diagram of a third structure of the embodiment;
FIG. 4 is an external structural view of the embodiment;
FIG. 5 is a schematic view showing the structure of an electric circuit core and a thermos according to a second embodiment;
FIG. 6 is a schematic diagram showing the structure of a third connecting body according to an embodiment;
in the figure: 1. the density probe comprises a density probe upper connector, 2, a density detector and a front-amplifying circuit, 3, a density long-source-distance receiving crystal, 4, a density long-source-distance photomultiplier, 5, a density short-source-distance receiving crystal, 6, a density short-source-distance photomultiplier, 7, a Cs137 density source chamber, 8, a density long-source-distance source window, 9, a density short-source-distance source window, 10, a density source window, 11, an upper cover cap, 12, a pressure-bearing shell, 13, a lower connector, 14, a pressure-bearing disc, 15, a lower cover cap, 16, an electronic circuit core, 17, a vacuum flask, 18, an upper connector, 19, a hose, 20, an upper connector, 21, a density probe, 22, a lower connector, 23, a lower connector, 24 and a main body.
Detailed Description
The technical solution of the present invention will be further specifically described with reference to the following examples.
The first embodiment is as follows:
the utility model provides a novel high temperature high pressure lithology density probe, includes density probe top connection, density probe main part, density probe lower clutch, ray detector, density probe top connection, density probe main part, density probe lower clutch connect in order, ray detector sets up inside the density probe main part.
The ray detector is mainly composed of a density detector, a front-end amplifier circuit, a density long-source-distance receiving crystal, a density long-source-distance photomultiplier, a density short-source-distance receiving crystal and a density short-source-distance photomultiplier which are electrically connected in an inserting mode.
Cs is arranged in the lower joint of the density probe137A density source chamber.
The density probe is made of high-density materials, the ray detector is arranged in the density probe, and the density probe is connected with the density probe main body through a hinge up and down through a joint.
The density probe body is provided with a density long source distance source window, a density short source distance source window and a density source window.
Example two:
a novel high-temperature high-pressure lithology density probe comprises an upper cover cap, a pressure-bearing shell, a lower joint, a lower cover cap, an electronic circuit core and a vacuum flask; the upper cover cap, the pressure-bearing shell, the lower joint and the lower cover cap are sequentially connected; the electronic circuit core and the vacuum bottle are sequentially spliced and then sleeved in the pressure-bearing shell of the instrument.
A pressure bearing disc is arranged between the end face of the vacuum flask and the end face of the lower cap.
The upper cover cap 11 and the lower cover cap 15 are used for protecting instruments in hoisting and transportation; the 12 pressure-bearing shell is used for ensuring the pressure-resistant index of the instrument, namely 206 Mpa; the 16 electronic circuit core is arranged in the 17 thermos bottles and integrally arranged in the 12 pressure-bearing shell, the lower end of the pressure-bearing shell is sealed by the 13 lower joint and the 14 pressure-bearing disc, and the electronic circuit core of the instrument is protected from being damaged in a high-temperature and high-pressure environment.
Example three:
a novel high-temperature high-pressure lithology density probe comprises an upper cap, a lower cap, an upper joint, a density probe, a lower joint and a main body; the upper cap, the upper joint, the main body, the lower joint and the lower cap are connected in sequence; and two ends of the density probe are hinged on the main body.
The density probe is characterized in that an upper connector and a lower connector are hinged to two ends of the density probe respectively, and the upper connector and the lower connector are hinged to the main body. An electronic circuit core is arranged in the main body. The density probe is connected with the electronic circuit core through a cable, and the hose is sleeved on the cable. The density probe, the upper connector and the lower connector are arranged in the groove, and the whole diameter of the density probe, the upper connector and the lower connector is consistent with that of the main body.
The upper cover cap 11 and the lower cover cap 15 are used for protecting instruments in hoisting and transportation; the 21 density probe is connected to the 24 main body through the 20 upper connecting body and the 22 lower connecting body, meanwhile, the 20 upper connecting body and the 22 lower connecting body are connected with the main body through a square hole structure, the 21 density probe is used for extending out of a 24 main body central line, and the 20 density probe is internally wired through the 19 hose and transmits data to a density electronic circuit.
The high-temperature high-pressure lithology density probe designed by the invention is suitable for logging in development wells such as ultra-deep exploratory wells, shale gas and dry hot rocks, and the pressure and temperature indexes are as follows: 206MPa and 200 ℃; the method comprises the following specific steps:
according to the formula of water pressure
P2. S. r/D- -formula 1
S wall thickness, r-40% of tensile strength, D outer diameter
According to the formula 1, the high-strength alloy is adopted, the wall thickness and the outer diameter of the instrument are reasonably calculated, and the compressive strength of the instrument is guaranteed to reach the design index.
The novel high-temperature high-pressure lithology density logging instrument consists of a circuit and a probe.
The probe part adopts a long-short source distance high-temperature detector, is arranged in the probe pressure-bearing shell, and is subjected to damping treatment at two ends, the source bin part adopts tungsten-nickel-iron alloy, shields source rays, and leaves a window so that the source rays reach the detector through a stratum, and the intensity of the received rays is detected to reflect stratum information.
The lithology density probe instrument shell is made of stainless steel and consists of a circuit board assembly and a detector assembly, as shown in figure 1.
The circuit part completes the functions of signal acquisition, processing and storage, and is placed in a special vacuum flask, the performance of the vacuum flask meets the environmental conditions of 200 ℃ and 20 hours, the internal temperature rise is not more than 120 ℃, and internal devices are protected at high temperature.
The radioactive short section comprises a pressure-bearing shell and a circuit framework. Electronic circuit components are screened, and the circuit is designed by adopting reliability, safety and electromagnetic compatibility, as shown in figure 2.
The conventional mechanical pushing design is cancelled, and a hinge structure is changed. The probe is connected with the instrument main body through a hinge, and the density probe automatically deviates 1-2 cm from the instrument central line under the action of gravity through the eccentrics at the two ends of the probe, so that the probe is tightly attached to the well wall, and the well logging quality is improved, as shown in figures 3 and 6.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a novel high temperature high pressure lithology density probe, its characterized in that, includes density probe top connection, density probe main part, density probe lower clutch, ray detector, density probe top connection, density probe main part, density probe lower clutch connect in order, ray detector sets up inside the density probe main part.
2. The novel high-temperature high-pressure lithology density probe as claimed in claim 1, wherein a Cs137 density source chamber is opened on the end face of the density probe lower joint located in the density probe body.
3. The novel high-temperature high-pressure lithology density probe as claimed in claim 2, wherein a density long source distance source window, a density short source distance source window and a density source window are arranged on the density probe body from left to right in sequence.
4. A novel high-temperature high-pressure lithology density probe is characterized by comprising an upper cover cap, a pressure-bearing shell, a lower joint, a lower cover cap, an electronic circuit core and a vacuum flask; the upper cover cap, the pressure-bearing shell, the lower joint and the lower cover cap are sequentially connected; the electronic circuit core and the vacuum bottle are sequentially spliced and then sleeved in the pressure-bearing shell of the instrument.
5. The probe of claim 4, wherein a pressure bearing disc is arranged between the end face of the vacuum flask and the end face of the lower cap.
6. A novel high-temperature high-pressure lithology density probe is characterized by comprising an upper cap, a lower cap, an upper joint, a density probe, a lower joint and a main body; the upper cap, the upper joint, the main body, the lower joint and the lower cap are connected in sequence; and two ends of the density probe are hinged on the main body.
7. The novel high-temperature high-pressure lithology density probe as claimed in claim 6, wherein an upper connector and a lower connector are respectively hinged to two ends of the density probe, and the upper connector and the lower connector are hinged to the main body.
8. The novel high temperature and pressure lithology density probe of claim 7, wherein an electronic circuit core is disposed within the body.
9. The novel high-temperature high-pressure lithology density probe of claim 8, further comprising a hose, wherein the density probe is connected with the electronic circuit core through a cable, and the cable is sleeved with the hose.
10. The novel high-temperature high-pressure lithology density probe of claim 9, wherein the main body is provided with a groove for accommodating the density probe, the upper connector and the lower connector, and when the density probe, the upper connector and the lower connector are arranged in the groove, the overall diameter of the density probe is consistent with that of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840310.XA CN114165214A (en) | 2020-08-19 | 2020-08-19 | Novel high-temperature high-pressure lithology density probe main body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840310.XA CN114165214A (en) | 2020-08-19 | 2020-08-19 | Novel high-temperature high-pressure lithology density probe main body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114165214A true CN114165214A (en) | 2022-03-11 |
Family
ID=80475284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010840310.XA Pending CN114165214A (en) | 2020-08-19 | 2020-08-19 | Novel high-temperature high-pressure lithology density probe main body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165214A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0487424A1 (en) * | 1990-11-23 | 1992-05-27 | Schlumberger Limited | High resolution logging method and apparatus |
| CN1719000A (en) * | 2005-07-07 | 2006-01-11 | 中国石化集团胜利石油管理局测井公司 | Lithology density well logging instrument |
| US20060290354A1 (en) * | 2005-06-27 | 2006-12-28 | Schlumberger Technology Corporation | Highly integrated logging tool |
| CN202731907U (en) * | 2012-07-18 | 2013-02-13 | 吉艾科技（北京）股份公司 | Storage type litho-density logger |
| CN203547707U (en) * | 2013-09-05 | 2014-04-16 | 中国石油集团长城钻探工程有限公司 | Logging instrument with improved mechanical structure and suitable for high-temperature and high-pressure slim-hole oil-gas well detection |
| CN111022033A (en) * | 2019-12-22 | 2020-04-17 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Microwave array sidewall contact and wall-contact dielectric logging instrument |
| CN111119871A (en) * | 2018-10-31 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Measuring device for measuring formation density value and measuring method thereof |
| CN210738552U (en) * | 2019-10-21 | 2020-06-12 | 西安石竹能源科技有限公司 | Integrated density probe hydraulic sidewall contact device |
| CN212985192U (en) * | 2020-08-19 | 2021-04-16 | 中国石油化工集团有限公司 | Novel high-temperature high-pressure lithology density probe |
-
2020
- 2020-08-19 CN CN202010840310.XA patent/CN114165214A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0487424A1 (en) * | 1990-11-23 | 1992-05-27 | Schlumberger Limited | High resolution logging method and apparatus |
| US20060290354A1 (en) * | 2005-06-27 | 2006-12-28 | Schlumberger Technology Corporation | Highly integrated logging tool |
| CN1719000A (en) * | 2005-07-07 | 2006-01-11 | 中国石化集团胜利石油管理局测井公司 | Lithology density well logging instrument |
| CN202731907U (en) * | 2012-07-18 | 2013-02-13 | 吉艾科技（北京）股份公司 | Storage type litho-density logger |
| CN203547707U (en) * | 2013-09-05 | 2014-04-16 | 中国石油集团长城钻探工程有限公司 | Logging instrument with improved mechanical structure and suitable for high-temperature and high-pressure slim-hole oil-gas well detection |
| CN111119871A (en) * | 2018-10-31 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Measuring device for measuring formation density value and measuring method thereof |
| CN210738552U (en) * | 2019-10-21 | 2020-06-12 | 西安石竹能源科技有限公司 | Integrated density probe hydraulic sidewall contact device |
| CN111022033A (en) * | 2019-12-22 | 2020-04-17 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Microwave array sidewall contact and wall-contact dielectric logging instrument |
| CN212985192U (en) * | 2020-08-19 | 2021-04-16 | 中国石油化工集团有限公司 | Novel high-temperature high-pressure lithology density probe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8920029B2 (en) | Sample containment apparatus, systems, and methods | |
| CN103328768A (en) | Logging-while-drilling tool incorporating electronic radiation generator and method for using same | |
| CN108761023A (en) | A kind of sea bed gas hydrate core boat-carrying multifunctional analysis laboratory installation | |
| CN202946149U (en) | Logging while drilling natural gamma logging instrument | |
| CN212985192U (en) | Novel high-temperature high-pressure lithology density probe | |
| US4504736A (en) | Gamma ray spectral tool for borehole use | |
| US11520063B2 (en) | Shock resistant downhole gamma ray detector assembly | |
| WO2020113333A1 (en) | Density measurement devices and methods | |
| CN205080268U (en) | Use and move seismic wave test system of spy as seismic source | |
| CN114165214A (en) | Novel high-temperature high-pressure lithology density probe main body | |
| CN205778840U (en) | A kind of GR well logging wireless senser with screening arrangement | |
| CN203867559U (en) | Lithology density logger | |
| CN104500052A (en) | Compensation density logging-while-drilling instrument | |
| CN107083955B (en) | High-temperature high-pressure digital geothermal logging system | |
| CN208564530U (en) | One kind is with brill controllable source density logging device | |
| CN105863618B (en) | A kind of Temperature Deep is with boring temperature-detecting device | |
| CN107165616B (en) | Wired inclinometer while drilling | |
| CN202339418U (en) | Logging device | |
| CN102768165A (en) | Instrument and method for quickly detecting residual gas volume by high temperature method | |
| CN101881159A (en) | Lithology and density logging instrument | |
| CN207905794U (en) | A kind of natural gamma well logging wireless sensor with screening arrangement | |
| CN102953689A (en) | Radioactive source bin and drill collar with same | |
| CN202220565U (en) | Radioactive source cabin and drill collar with same | |
| CN207212322U (en) | It is a kind of to be used to demarcate the gamma graduator with gamma inserting tube is bored | |
| CN105629318A (en) | Measurement system for natural gamma radioactivity of ground rock debris |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |