At construction of new wells and boring of the used wells’ lateral channels as an indispensable equipment for geophysical provision of angularity (spatial determination of borehole axes of all types) serves the presently offered new generation of gyroscopic inclinometers, based on principles of analytic gyro-compassing, parameters of which can satisfy all needs in the well logging and ore geophysics to the maximum.

Gyroscopic inclinometers are intended for measurement of zenith angles, geographic and angular position of a borer stem’s standoff unit with a view to define spatial position of axis of oil-and-gas boreholes, as well as boreholes of any other type, at well-boring, control checks and maintenance works. The gyroscopic inclinometers can be used independently or as a part of some conventional well-logging system for geophysical survey of any wells: straight, inclined, directional, horizontal, cased, uncased wells, also drilled wells and wells to be drilled in rocks with ferromagnetic nodules. The inclinometers can also be used for determination of spatial position of the pipelines to be traced in the out-of-the-way places, e.g. across a river bottom or under the storage ponds.

Gyroscopic inclinometers are used for measuring the verticality and azimuth of metalworks in house-building. Gyroscopic inclinometers function on principles of analytic gyro-compassing and do not require time and additional equipment for initial alignment prior to operation. Measurements within wells can be made both at lowering or hoisting the downhole tool. All measurements are performed in real time to enable the on-line inspection of a borehole crooking or detailed survey of any well site.

Gyroscopic inclinometers offer the embedded program of self-adjustment and functional checks. The use of self-adjustment mode enables the observability of borehole measurement’s errors and their compensation, as well as extends periods between the required validation checks of the inclinometer’s accuracy up to 1 year. In addition, the borehole measurements obtained with the help of our devices at different times are always repeatable. The data are displayed on PC and saved on a magnetic medium. The profile calculations of the measured borehole section are displayed on PC and can be printed out. All resulting read-outs are dumped in LAS-form.

There is a specific soft that enables pointing the downhole tool toward the project azimuth from an upright borehole site.

The use of LSI element base, as well as application of gyroscopic inclinometer with 30 000 hrs service life in the context of strapdown operation mode provides for significant increase of gyroscopic inclinometer reliability and thus allows an end-user to pay off the gyroscopic inclinometer within a shorter time than mean-time-between-failures at the total service life exceeding 5 years.

These are the only gyroscopic inclinometers in Russia that can measure the azimuth over the entire range of zenith angles.

The inclinometers comply with all modern trends of drilling activities, such as:

• cluster drilling with high density of wells;
• horizontal drilling;
• operation mode with a boring tool’s gyro-orientator at drilling-out of lateral boreholes;
• high-accuracy measurements of azimuth at conductors’ verticality checks.

Unlike the other models, our gyroscopic inclinometers offer the following features:

• in drilling the vertical stretches of boreholes the inclinometers enable the stable azimuth checks of a borehole axis starting from zenith angle of 0.3 degrees and thus provide for safe (trouble-free) drilling at high density of boreholes’ spacing;
• azimuth survey of building units starts from the zenith angle of 0.1 degree;
• supervision at horizontal borehole tracing and absence of any restrictions as regards the operating time within a borehole, range of azimuth, zenith or standoff angles;
• while drilling the lateral boreholes in old wells the special soft allows pointing of the borer’s stem toward a project azimuth in oilfield from upright position of a casing string without cutout of its site.

Full delivery set includes:

1. Downhole tool;
2. Surface operator’s console;
3. Software;
4. Set of centralizers;
5. Technical documents (logbook, operating manual);
6. PC (to be agreed with the Buyers);
7. Fail-safe power supply (to be agreed with the Buyers);
8. The backup downhole tool can be supplied additionally.

On special order available in a heat-resistant (up to +120^oC) version.

Services:

• Delivery of gyroscopic inclinometers in agreed set;
• Instruction of the Buyer’s personnel in the device control and operation at the stand of FGUP “IMZ”;
• Free technical support (by any communication facilities), as well as technical diagnostics of any device condition based on the data files supplied by the Customer. After-sales service.
• Execution of orders for the complete package of measurement works. Post-warranty repair and calibration works.

The content of delivery set, price and terms of delivery are stipulated by the contract.

Our customers:

• Oil wells: «Tatneftgeofizika», «Permneftgeofizika», etc.
• Ore geophysics: AK «ALROSA», «Norilsk Nickel», «Belgorod Mining Company»
• Sea-shelf wells: «Lukoil-Kaliningradmorneft»
• High-rise building construction: «Ingeokomtrans» (Moscow)