際際滷

際際滷Share a Scribd company logo

rhe-use_haynesville_1

Manu Tayal
Manu Tayal

The operator was preparing to drill a well where low-gravity solids (LGS) had previously caused expensive problems in offset wells. M-I SWACO recommended using their new RHE-USE process to remove LGS and improve drilling efficiency. When applied in a 5,049-ft interval, the RHE-USE process saved an estimated $163,282 by reducing dilution needs and allowing reuse of drilling fluid. It also improved drilling performance by lowering downhole temperatures and reducing bit wear.

1 of 2
Download to read offline
CASE STUDY The Situation The operator was prepared to drill a well in Caddo, LA where low-gravity solids (LGS) had previously presented a host of expensive problems. In offset wells, the operator had to contend with the enormous costs and potential environmental liabilities associated with hauling large volumes of contaminated cuttings to distant disposal sites. In addition, the inability to remove LGS restricted drilling performance, further increasing well construction costs. The Solution Solids control/waste management specialists from M-I SWACO, A Schlumberger Company, recommended the operator employ their new-generation RHE-USE process to completely remove LGS to enhance drilling efficiency and reduce disposal costs. The patent-pending, chemically-enhanced technology had previously field-proven its capacity to optimize drilling while delivering cuttings suitable for onsite disposal. With operator approval, the process was used in a 5,049-ft (1,539 m) interval from 10,768 to 15,817 ft TD (3,282-4,821 m). The Results By using the RHE-USE process, the operator saved an estimated $163,282, including the recovery of 1,045 bbl of reusable oil-base drilling fluid through the use of dual MEERKAT drying shakers. Total dilution amounted to 537 bbl of diesel, water and barite. In comparison, at the 100% dilution rate previously required, up to 18,517 bbl would have been consumed to maintain 2.9% LGS. In addition, the 5,049-ft interval was drilled in 12 days with generated hole volume of approximately 275.2 bbl based on a 6他 -in. bit and 10% washout. Removing the bulk of the LGS concentration also reduced friction appreciably, thereby lowering downhole mud temperature by 20 to 30属. Less abrasion meant the downhole motor and bit could drill longer without tripping for maintenance. Haynesville Shale: RHE-USE saves operator an estimated $163,282
息2012 M-I L.L.C. All rights reserved. Mark of M-I L.L.C. DPR.1806a.1208.R1 (E) Patent Pending This information is supplied solely for informational purposes and M-I SWACO makes no guarantees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale. Nothing in this document is legal advice or is a substitute for competent legal advice. P.O. Box 42842 Houston, Texas 77242-2842 www.miswaco.slb.com Email: questions@miswaco.slb.com

More Related Content

rhe-use_haynesville_1

  • 1. CASE STUDY The Situation The operator was prepared to drill a well in Caddo, LA where low-gravity solids (LGS) had previously presented a host of expensive problems. In offset wells, the operator had to contend with the enormous costs and potential environmental liabilities associated with hauling large volumes of contaminated cuttings to distant disposal sites. In addition, the inability to remove LGS restricted drilling performance, further increasing well construction costs. The Solution Solids control/waste management specialists from M-I SWACO, A Schlumberger Company, recommended the operator employ their new-generation RHE-USE process to completely remove LGS to enhance drilling efficiency and reduce disposal costs. The patent-pending, chemically-enhanced technology had previously field-proven its capacity to optimize drilling while delivering cuttings suitable for onsite disposal. With operator approval, the process was used in a 5,049-ft (1,539 m) interval from 10,768 to 15,817 ft TD (3,282-4,821 m). The Results By using the RHE-USE process, the operator saved an estimated $163,282, including the recovery of 1,045 bbl of reusable oil-base drilling fluid through the use of dual MEERKAT drying shakers. Total dilution amounted to 537 bbl of diesel, water and barite. In comparison, at the 100% dilution rate previously required, up to 18,517 bbl would have been consumed to maintain 2.9% LGS. In addition, the 5,049-ft interval was drilled in 12 days with generated hole volume of approximately 275.2 bbl based on a 6他 -in. bit and 10% washout. Removing the bulk of the LGS concentration also reduced friction appreciably, thereby lowering downhole mud temperature by 20 to 30属. Less abrasion meant the downhole motor and bit could drill longer without tripping for maintenance. Haynesville Shale: RHE-USE saves operator an estimated $163,282
  • 2. 息2012 M-I L.L.C. All rights reserved. Mark of M-I L.L.C. DPR.1806a.1208.R1 (E) Patent Pending This information is supplied solely for informational purposes and M-I SWACO makes no guarantees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale. Nothing in this document is legal advice or is a substitute for competent legal advice. P.O. Box 42842 Houston, Texas 77242-2842 www.miswaco.slb.com Email: questions@miswaco.slb.com