Technical Drilling Data Acquisition and Processing With an Integrated Computer System
- J.J. Chevallier (Sedco Forex) | F.P. Quetier (Sedco Forex) | D.W. Marshall (Sedco Forex)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling Engineering
- Publication Date
- April 1986
- Document Type
- Journal Paper
- 153 - 162
- 1986. Society of Petroleum Engineers
- 0 in the last 30 days
- 104 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 5.00|
|SPE Non-Member Price:||USD 35.00|
Sedco Forex has developed an integrated computer system to enhance the technical performance of the company at various operational levels and to increase the understanding and knowledge of the drill crews.
This paper describes the system and how it is used for recording and processing drilling data at the rig site, for associated technical analyses, and for well design, planning, and drilling performance studies at the operational centers. Some capabilities related to the statistical analysis of the company's operational records are also described, and future development of rig computing systems for drilling applications and management tasks is discussed.
The computer is becoming an increasingly common feature of the workplace and is an important, if not essential, tool in many aspects of oil exploration and production. Yet its use in drilling operations is limited primarily to the office; widespread application at the wellsite has not yet taken place. There are several reasons for this, such as the remoteness of drilling locations, poor communications links, limited software, and field personnel who are unfamiliar with the technical value of the computer. Where such tools are available, they tend to be limited to either handheld calculators with simplistic and frequently outdated software or the sophisticated and expensive data units provided by service companies.
A compromise has been achieved between these extremes to fulfill several important roles. We foresaw a necessity to provide relatively sophisticated integrated computer facilities at the wellsite, whether the rig was a large semisubmersible in the North Sea or a small land rig in the Middle East. Technical drilling information would be available to the personnel to assist in the drilling operations in a turnkey or footage contract and to the operator personnel as part of a day-rate contract. In addition, nontechnical information would be provided for our own use as a part of a computerized daily-report/operations-analysis package. Our desire to involve the drilling crews, particularly the driller and tool pusher, in the operation at a technical level is equally important. If we increase the technical drilling knowledge and the understanding of the drill crews through the use of such a computer system, the quality of our operations will improve, as will the ability to discuss technical matters with clients.
This system is not intended to replace existing systems provided by either service companies. Rather, it complements such systems and is independent of them to the extent that any of our rigs are able to provide a level of technical- and operational-related software for both our use and that of the client.
To understand fully how we use the integrated computer system, an explanation of our operational organization is helpful. Essentially, there are four levels, including the research and engineering group in Paris and Dallas. Unit offices in Dallas, Paris, Aberdeen, and Singapore oversee operations in the Western Hemisphere, South Europe and Africa, North Sea, and the Middle and Far East, respectively. Each unit is subdivided into a number of districts, usually one per country, with each rig representing the fourth level.
The computer system has been designed so that the equivalent hardware configuration and software packages can be used at any level within the organization for different purposes. The only exceptions are the data base, which is currently centralized in Paris, and the data-acquisition component, which his obviously used only at the rig site. Fig. 1 shows the primary uses of the software and the well data obtained by it at different levels. Well design is not a concern at the wellsite, but the daily report is important. Conversely, the daily report is important. Conversely, the daily report is less important at the unit or head offices than is well design. Well and rig performance analyses are important throughout all levels; the only difference is in the number of rigs and, consequently, the amount of data being analyzed. The system has been designed specifically to incorporate this versatility.
|File Size||540 KB||Number of Pages||10|